package com.fyyg.common.util;

import javax.servlet.http.HttpServletRequest;

/**
 * @author hang.ouyang
 * @date 2016-04-01 10:53
 */
public class IPAddressUtil {


    public static String getIpAddress(HttpServletRequest request) {
        String ip = request.getHeader("x-forwarded-for");
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_CLIENT_IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_X_FORWARDED_FOR");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }

        return ip;
    }



    public static String getSingleIpAddress(HttpServletRequest request) {
		if (null == request) {
			return "127.0.0.1";
		}
		
        String ip = getIpAddress(request);
        ip = ip.contains(",") ? ip.split(",")[0] : ip;
        return ip;
    }



}
